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# -*- mode: python; coding: utf-8 -*-
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# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
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# Mandos server - give out binary blobs to connecting clients.
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# This program is partly derived from an example program for an Avahi
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# service publisher, downloaded from
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# <http://avahi.org/wiki/PythonPublishExample>. This includes the
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# methods "add", "remove", "server_state_changed",
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# "entry_group_state_changed", "cleanup", and "activate" in the
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# "AvahiService" class, and some lines in "main".
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# Everything else is
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# Copyright © 2008-2014 Teddy Hogeborn
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# Copyright © 2008-2014 Björn Påhlsson
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# Copyright © 2008-2019 Teddy Hogeborn
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# Copyright © 2008-2019 Björn Påhlsson
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# This file is part of Mandos.
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# Mandos is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# Mandos is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@recompile.se>.
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from __future__ import (division, absolute_import, print_function,
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from future_builtins import *
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from future_builtins import *
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import SocketServer as socketserver
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import SocketServer as socketserver
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import gnutls.connection
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import gnutls.library.functions
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import gnutls.library.constants
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import gnutls.library.types
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import ConfigParser as configparser
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import ConfigParser as configparser
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import cPickle as pickle
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import cPickle as pickle
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import multiprocessing
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import dbus.service
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from gi.repository import GLib
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from dbus.mainloop.glib import DBusGMainLoop
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import xml.dom.minidom
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if sys.version_info.major == 2:
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# Add collections.abc.Callable if it does not exist
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collections.abc.Callable
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except AttributeError:
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Callable = collections.Callable
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collections.abc = abc
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# Add shlex.quote if it does not exist
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except AttributeError:
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shlex.quote = re.escape
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# Show warnings by default
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if not sys.warnoptions:
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warnings.simplefilter("default")
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# Try to find the value of SO_BINDTODEVICE:
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# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
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# newer, and it is also the most natural place for it:
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SO_BINDTODEVICE = socket.SO_BINDTODEVICE
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except AttributeError:
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# This is where SO_BINDTODEVICE was up to and including Python
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from IN import SO_BINDTODEVICE
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except ImportError:
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SO_BINDTODEVICE = None
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# In Python 2.7 it seems to have been removed entirely.
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# Try running the C preprocessor:
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cc = subprocess.Popen(["cc", "--language=c", "-E",
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE)
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stdout = cc.communicate(
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"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
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SO_BINDTODEVICE = int(stdout.splitlines()[-1])
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except (OSError, ValueError, IndexError):
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SO_BINDTODEVICE = None
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if sys.version_info < (3, 2):
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configparser.Configparser = configparser.SafeConfigParser
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stored_state_file = "clients.pickle"
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logger = logging.getLogger()
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logging.captureWarnings(True) # Show warnings via the logging system
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if_nametoindex = (ctypes.cdll.LoadLibrary
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(ctypes.util.find_library("c"))
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if_nametoindex = ctypes.cdll.LoadLibrary(
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ctypes.util.find_library("c")).if_nametoindex
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except (OSError, AttributeError):
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def if_nametoindex(interface):
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"Get an interface index the hard way, i.e. using fcntl()"
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SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
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with contextlib.closing(socket.socket()) as s:
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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
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struct.pack(str("16s16x"),
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interface_index = struct.unpack(str("I"),
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struct.pack(b"16s16x", interface))
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interface_index = struct.unpack("I", ifreq[16:20])[0]
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return interface_index
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def copy_function(func):
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"""Make a copy of a function"""
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if sys.version_info.major == 2:
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return types.FunctionType(func.func_code,
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return types.FunctionType(func.__code__,
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def initlogger(debug, level=logging.WARNING):
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"""init logger and add loglevel"""
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syslogger = (logging.handlers.SysLogHandler
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logging.handlers.SysLogHandler.LOG_DAEMON,
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address = str("/dev/log")))
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syslogger = (logging.handlers.SysLogHandler(
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facility=logging.handlers.SysLogHandler.LOG_DAEMON,
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syslogger.setFormatter(logging.Formatter
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('Mandos [%(process)d]: %(levelname)s:'
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logger.addHandler(syslogger)
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console = logging.StreamHandler()
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console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
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.replace(b"\n", b"\\n")
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.replace(b"\0", b"\\x00"))
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def encrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(dir=self.tempdir
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with tempfile.NamedTemporaryFile(
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dir=self.tempdir) as passfile:
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passfile.write(passphrase)
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proc = subprocess.Popen(['gpg', '--symmetric',
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proc = subprocess.Popen([self.gpg, '--symmetric',
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'--passphrase-file',
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+ self.gnupgargs,
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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ciphertext, err = proc.communicate(input = data)
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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ciphertext, err = proc.communicate(input=data)
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if proc.returncode != 0:
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raise PGPError(err)
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return ciphertext
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def decrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(dir = self.tempdir
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with tempfile.NamedTemporaryFile(
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dir=self.tempdir) as passfile:
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passfile.write(passphrase)
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proc = subprocess.Popen(['gpg', '--decrypt',
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proc = subprocess.Popen([self.gpg, '--decrypt',
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'--passphrase-file',
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+ self.gnupgargs,
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input=data)
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if proc.returncode != 0:
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raise PGPError(err)
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return decrypted_plaintext
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# Pretend that we have an Avahi module
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"""This isn't so much a class as it is a module-like namespace."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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DBUS_NAME = "org.freedesktop.Avahi"
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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
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DBUS_PATH_SERVER = "/"
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def string_array_to_txt_array(t):
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return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
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for s in t), signature="ay")
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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class AvahiError(Exception):
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def __init__(self, value, *args, **kwargs):
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self.value = value
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super(AvahiError, self).__init__(value, *args, **kwargs)
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def __unicode__(self):
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return unicode(repr(self.value))
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return super(AvahiError, self).__init__(value, *args,
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class AvahiServiceError(AvahiError):
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class AvahiGroupError(AvahiError):
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class AvahiService(object):
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"""An Avahi (Zeroconf) service.
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interface: integer; avahi.IF_UNSPEC or an interface index.
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Used to optionally bind to the specified interface.
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follow_name_owner_changes=True),
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avahi.DBUS_INTERFACE_SERVER)
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self.server.connect_to_signal("StateChanged",
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self.server_state_changed)
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self.server_state_changed)
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self.server_state_changed(self.server.GetState())
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class AvahiServiceToSyslog(AvahiService):
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def rename(self, *args, **kwargs):
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"""Add the new name to the syslog messages"""
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ret = AvahiService.rename(self)
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syslogger.setFormatter(logging.Formatter
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('Mandos ({0}) [%(process)d]:'
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' %(levelname)s: %(message)s'
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ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
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syslogger.setFormatter(logging.Formatter(
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'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
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def timedelta_to_milliseconds(td):
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"Convert a datetime.timedelta() to milliseconds"
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return ((td.days * 24 * 60 * 60 * 1000)
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+ (td.seconds * 1000)
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+ (td.microseconds // 1000))
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class Client(object):
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# Pretend that we have a GnuTLS module
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"""This isn't so much a class as it is a module-like namespace."""
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library = ctypes.util.find_library("gnutls")
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library = ctypes.util.find_library("gnutls-deb0")
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_library = ctypes.cdll.LoadLibrary(library)
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# Unless otherwise indicated, the constants and types below are
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# all from the gnutls/gnutls.h C header file.
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E_NO_CERTIFICATE_FOUND = -49
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KEYID_USE_SHA256 = 1 # gnutls/x509.h
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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
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class session_int(ctypes.Structure):
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session_t = ctypes.POINTER(session_int)
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class certificate_credentials_st(ctypes.Structure):
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certificate_credentials_t = ctypes.POINTER(
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certificate_credentials_st)
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certificate_type_t = ctypes.c_int
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class datum_t(ctypes.Structure):
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_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
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('size', ctypes.c_uint)]
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class openpgp_crt_int(ctypes.Structure):
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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
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credentials_type_t = ctypes.c_int
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transport_ptr_t = ctypes.c_void_p
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close_request_t = ctypes.c_int
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class Error(Exception):
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def __init__(self, message=None, code=None, args=()):
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# Default usage is by a message string, but if a return
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# code is passed, convert it to a string with
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if message is None and code is not None:
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message = gnutls.strerror(code)
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return super(gnutls.Error, self).__init__(
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class CertificateSecurityError(Error):
606
self._c_object = gnutls.certificate_credentials_t()
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gnutls.certificate_allocate_credentials(
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ctypes.byref(self._c_object))
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self.type = gnutls.CRD_CERTIFICATE
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gnutls.certificate_free_credentials(self._c_object)
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def __init__(self, socket, credentials=None):
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self._c_object = gnutls.session_t()
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gnutls_flags = gnutls.CLIENT
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if gnutls.check_version(b"3.5.6"):
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gnutls_flags |= gnutls.NO_TICKETS
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gnutls_flags |= gnutls.ENABLE_RAWPK
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gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
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gnutls.set_default_priority(self._c_object)
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gnutls.transport_set_ptr(self._c_object, socket.fileno())
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gnutls.handshake_set_private_extensions(self._c_object,
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if credentials is None:
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credentials = gnutls.Credentials()
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gnutls.credentials_set(self._c_object, credentials.type,
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ctypes.cast(credentials._c_object,
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self.credentials = credentials
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gnutls.deinit(self._c_object)
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return gnutls.handshake(self._c_object)
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def send(self, data):
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data_len -= gnutls.record_send(self._c_object,
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return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
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# Error handling functions
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def _error_code(result):
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"""A function to raise exceptions on errors, suitable
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for the 'restype' attribute on ctypes functions"""
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if result == gnutls.E_NO_CERTIFICATE_FOUND:
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raise gnutls.CertificateSecurityError(code=result)
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raise gnutls.Error(code=result)
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def _retry_on_error(result, func, arguments):
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"""A function to retry on some errors, suitable
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for the 'errcheck' attribute on ctypes functions"""
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if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
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return _error_code(result)
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result = func(*arguments)
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# Unless otherwise indicated, the function declarations below are
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# all from the gnutls/gnutls.h C header file.
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priority_set_direct = _library.gnutls_priority_set_direct
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priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
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ctypes.POINTER(ctypes.c_char_p)]
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priority_set_direct.restype = _error_code
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init = _library.gnutls_init
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init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
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init.restype = _error_code
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set_default_priority = _library.gnutls_set_default_priority
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set_default_priority.argtypes = [session_t]
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set_default_priority.restype = _error_code
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record_send = _library.gnutls_record_send
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record_send.argtypes = [session_t, ctypes.c_void_p,
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record_send.restype = ctypes.c_ssize_t
693
record_send.errcheck = _retry_on_error
695
certificate_allocate_credentials = (
696
_library.gnutls_certificate_allocate_credentials)
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certificate_allocate_credentials.argtypes = [
698
ctypes.POINTER(certificate_credentials_t)]
699
certificate_allocate_credentials.restype = _error_code
701
certificate_free_credentials = (
702
_library.gnutls_certificate_free_credentials)
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
705
certificate_free_credentials.restype = None
707
handshake_set_private_extensions = (
708
_library.gnutls_handshake_set_private_extensions)
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handshake_set_private_extensions.argtypes = [session_t,
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handshake_set_private_extensions.restype = None
713
credentials_set = _library.gnutls_credentials_set
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credentials_set.argtypes = [session_t, credentials_type_t,
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credentials_set.restype = _error_code
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strerror = _library.gnutls_strerror
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strerror.argtypes = [ctypes.c_int]
720
strerror.restype = ctypes.c_char_p
722
certificate_type_get = _library.gnutls_certificate_type_get
723
certificate_type_get.argtypes = [session_t]
724
certificate_type_get.restype = _error_code
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certificate_get_peers = _library.gnutls_certificate_get_peers
727
certificate_get_peers.argtypes = [session_t,
728
ctypes.POINTER(ctypes.c_uint)]
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
731
global_set_log_level = _library.gnutls_global_set_log_level
732
global_set_log_level.argtypes = [ctypes.c_int]
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global_set_log_level.restype = None
735
global_set_log_function = _library.gnutls_global_set_log_function
736
global_set_log_function.argtypes = [log_func]
737
global_set_log_function.restype = None
739
deinit = _library.gnutls_deinit
740
deinit.argtypes = [session_t]
741
deinit.restype = None
743
handshake = _library.gnutls_handshake
744
handshake.argtypes = [session_t]
745
handshake.restype = _error_code
746
handshake.errcheck = _retry_on_error
748
transport_set_ptr = _library.gnutls_transport_set_ptr
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
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transport_set_ptr.restype = None
752
bye = _library.gnutls_bye
753
bye.argtypes = [session_t, close_request_t]
754
bye.restype = _error_code
755
bye.errcheck = _retry_on_error
757
check_version = _library.gnutls_check_version
758
check_version.argtypes = [ctypes.c_char_p]
759
check_version.restype = ctypes.c_char_p
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
771
class pubkey_st(ctypes.Structure):
773
pubkey_t = ctypes.POINTER(pubkey_st)
775
x509_crt_fmt_t = ctypes.c_int
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
785
pubkey_import.restype = _error_code
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
797
# All the function declarations below are from gnutls/openpgp.h
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
807
openpgp_crt_import.restype = _error_code
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
824
openpgp_crt_get_fingerprint.restype = _error_code
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
831
# Remove non-public functions
832
del _error_code, _retry_on_error
835
def call_pipe(connection, # : multiprocessing.Connection
836
func, *args, **kwargs):
837
"""This function is meant to be called by multiprocessing.Process
839
This function runs func(*args, **kwargs), and writes the resulting
840
return value on the provided multiprocessing.Connection.
842
connection.send(func(*args, **kwargs))
411
847
"""A representation of a client host served by this server.
414
850
approved: bool(); 'None' if not yet approved/disapproved
415
851
approval_delay: datetime.timedelta(); Time to wait for approval
416
852
approval_duration: datetime.timedelta(); Duration of one approval
417
checker: subprocess.Popen(); a running checker process used
418
to see if the client lives.
419
'None' if no process is running.
420
checker_callback_tag: a gobject event source tag, or None
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
856
checker_callback_tag: a GLib event source tag, or None
421
857
checker_command: string; External command which is run to check
422
858
if client lives. %() expansions are done at
423
859
runtime with vars(self) as dict, so that for
424
860
instance %(name)s can be used in the command.
425
checker_initiator_tag: a gobject event source tag, or None
861
checker_initiator_tag: a GLib event source tag, or None
426
862
created: datetime.datetime(); (UTC) object creation
427
863
client_structure: Object describing what attributes a client has
428
864
and is used for storing the client at exit
429
865
current_checker_command: string; current running checker_command
430
disable_initiator_tag: a gobject event source tag, or None
866
disable_initiator_tag: a GLib event source tag, or None
432
868
fingerprint: string (40 or 32 hexadecimal digits); used to
433
uniquely identify the client
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
434
872
host: string; available for use by the checker command
435
873
interval: datetime.timedelta(); How often to start a new checker
436
874
last_approval_request: datetime.datetime(); (UTC) or None
603
1031
logger.info("Disabling client %s", self.name)
604
1032
if getattr(self, "disable_initiator_tag", None) is not None:
605
gobject.source_remove(self.disable_initiator_tag)
1033
GLib.source_remove(self.disable_initiator_tag)
606
1034
self.disable_initiator_tag = None
607
1035
self.expires = None
608
1036
if getattr(self, "checker_initiator_tag", None) is not None:
609
gobject.source_remove(self.checker_initiator_tag)
1037
GLib.source_remove(self.checker_initiator_tag)
610
1038
self.checker_initiator_tag = None
611
1039
self.stop_checker()
612
1040
self.enabled = False
614
1042
self.send_changedstate()
615
# Do not run this again if called by a gobject.timeout_add
1043
# Do not run this again if called by a GLib.timeout_add
618
1046
def __del__(self):
621
1049
def init_checker(self):
622
1050
# Schedule a new checker to be started an 'interval' from now,
623
1051
# and every interval from then on.
624
1052
if self.checker_initiator_tag is not None:
625
gobject.source_remove(self.checker_initiator_tag)
626
self.checker_initiator_tag = (gobject.timeout_add
627
(self.interval_milliseconds(),
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
629
1058
# Schedule a disable() when 'timeout' has passed
630
1059
if self.disable_initiator_tag is not None:
631
gobject.source_remove(self.disable_initiator_tag)
632
self.disable_initiator_tag = (gobject.timeout_add
633
(self.timeout_milliseconds(),
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
1062
int(self.timeout.total_seconds() * 1000), self.disable)
635
1063
# Also start a new checker *right now*.
636
1064
self.start_checker()
638
def checker_callback(self, pid, condition, command):
1066
def checker_callback(self, source, condition, connection,
639
1068
"""The checker has completed, so take appropriate actions."""
1069
# Read return code from connection (see call_pipe)
1070
returncode = connection.recv()
1072
if self.checker is not None:
640
1074
self.checker_callback_tag = None
641
1075
self.checker = None
642
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
1078
self.last_checker_status = returncode
1079
self.last_checker_signal = None
644
1080
if self.last_checker_status == 0:
645
1081
logger.info("Checker for %(name)s succeeded",
647
1083
self.checked_ok()
649
logger.info("Checker for %(name)s failed",
1085
logger.info("Checker for %(name)s failed", vars(self))
652
1087
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
653
1089
logger.warning("Checker for %(name)s crashed?",
656
1093
def checked_ok(self):
657
1094
"""Assert that the client has been seen, alive and well."""
658
1095
self.last_checked_ok = datetime.datetime.utcnow()
659
1096
self.last_checker_status = 0
1097
self.last_checker_signal = None
660
1098
self.bump_timeout()
662
1100
def bump_timeout(self, timeout=None):
663
1101
"""Bump up the timeout for this client."""
664
1102
if timeout is None:
665
1103
timeout = self.timeout
666
1104
if self.disable_initiator_tag is not None:
667
gobject.source_remove(self.disable_initiator_tag)
1105
GLib.source_remove(self.disable_initiator_tag)
668
1106
self.disable_initiator_tag = None
669
1107
if getattr(self, "enabled", False):
670
self.disable_initiator_tag = (gobject.timeout_add
671
(timedelta_to_milliseconds
672
(timeout), self.disable))
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
673
1110
self.expires = datetime.datetime.utcnow() + timeout
675
1112
def need_approval(self):
676
1113
self.last_approval_request = datetime.datetime.utcnow()
678
1115
def start_checker(self):
679
1116
"""Start a new checker subprocess if one is not running.
681
1118
If a checker already exists, leave it running and do
683
1120
# The reason for not killing a running checker is that if we
688
1125
# checkers alone, the checker would have to take more time
689
1126
# than 'timeout' for the client to be disabled, which is as it
692
# If a checker exists, make sure it is not a zombie
694
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
695
except AttributeError:
697
except OSError as error:
698
if error.errno != errno.ECHILD:
702
logger.warning("Checker was a zombie")
703
gobject.source_remove(self.checker_callback_tag)
704
self.checker_callback(pid, status,
705
self.current_checker_command)
1129
if self.checker is not None and not self.checker.is_alive():
1130
logger.warning("Checker was not alive; joining")
706
1133
# Start a new checker if needed
707
1134
if self.checker is None:
708
1135
# Escape attributes for the shell
709
escaped_attrs = dict(
710
(attr, re.escape(unicode(getattr(self, attr))))
712
self.runtime_expansions)
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
714
1140
command = self.checker_command % escaped_attrs
715
1141
except TypeError as error:
716
1142
logger.error('Could not format string "%s"',
717
self.checker_command, exc_info=error)
718
return True # Try again later
1143
self.checker_command,
1145
return True # Try again later
719
1146
self.current_checker_command = command
721
logger.info("Starting checker %r for %s",
723
# We don't need to redirect stdout and stderr, since
724
# in normal mode, that is already done by daemon(),
725
# and in debug mode we don't want to. (Stdin is
726
# always replaced by /dev/null.)
727
# The exception is when not debugging but nevertheless
728
# running in the foreground; use the previously
731
if (not self.server_settings["debug"]
732
and self.server_settings["foreground"]):
733
popen_args.update({"stdout": wnull,
735
self.checker = subprocess.Popen(command,
739
except OSError as error:
740
logger.error("Failed to start subprocess",
743
self.checker_callback_tag = (gobject.child_watch_add
745
self.checker_callback,
747
# The checker may have completed before the gobject
748
# watch was added. Check for this.
750
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
751
except OSError as error:
752
if error.errno == errno.ECHILD:
753
# This should never happen
754
logger.error("Child process vanished",
759
gobject.source_remove(self.checker_callback_tag)
760
self.checker_callback(pid, status, command)
761
# Re-run this periodically if run by gobject.timeout_add
1147
logger.info("Starting checker %r for %s", command,
1149
# We don't need to redirect stdout and stderr, since
1150
# in normal mode, that is already done by daemon(),
1151
# and in debug mode we don't want to. (Stdin is
1152
# always replaced by /dev/null.)
1153
# The exception is when not debugging but nevertheless
1154
# running in the foreground; use the previously
1156
popen_args = {"close_fds": True,
1159
if (not self.server_settings["debug"]
1160
and self.server_settings["foreground"]):
1161
popen_args.update({"stdout": wnull,
1163
pipe = multiprocessing.Pipe(duplex=False)
1164
self.checker = multiprocessing.Process(
1166
args=(pipe[1], subprocess.call, command),
1168
self.checker.start()
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1172
self.checker_callback, pipe[0], command)
1173
# Re-run this periodically if run by GLib.timeout_add
764
1176
def stop_checker(self):
765
1177
"""Force the checker process, if any, to stop."""
766
1178
if self.checker_callback_tag:
767
gobject.source_remove(self.checker_callback_tag)
1179
GLib.source_remove(self.checker_callback_tag)
768
1180
self.checker_callback_tag = None
769
1181
if getattr(self, "checker", None) is None:
771
1183
logger.debug("Stopping checker for %(name)s", vars(self))
773
self.checker.terminate()
775
#if self.checker.poll() is None:
776
# self.checker.kill()
777
except OSError as error:
778
if error.errno != errno.ESRCH: # No such process
1184
self.checker.terminate()
780
1185
self.checker = None
783
def dbus_service_property(dbus_interface, signature="v",
784
access="readwrite", byte_arrays=False):
1188
def dbus_service_property(dbus_interface,
785
1192
"""Decorators for marking methods of a DBusObjectWithProperties to
786
1193
become properties on the D-Bus.
788
1195
The decorated method will be called with no arguments by "Get"
789
1196
and with one argument by "Set".
791
1198
The parameters, where they are supported, are the same as
792
1199
dbus.service.method, except there is only "signature", since the
793
1200
type from Get() and the type sent to Set() is the same.
869
class DBusObjectWithProperties(dbus.service.Object):
870
"""A D-Bus object with properties.
872
Classes inheriting from this can use the dbus_service_property
873
decorator to expose methods as D-Bus properties. It exposes the
874
standard Get(), Set(), and GetAll() methods on the D-Bus.
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1284
"""A D-Bus object with annotations.
1286
Classes inheriting from this can use the dbus_annotations
1287
decorator to add annotations to methods or signals.
878
1291
def _is_dbus_thing(thing):
879
1292
"""Returns a function testing if an attribute is a D-Bus thing
881
1294
If called like _is_dbus_thing("method") it returns a function
882
1295
suitable for use as predicate to inspect.getmembers().
884
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
887
1300
def _get_all_dbus_things(self, thing):
888
1301
"""Returns a generator of (name, attribute) pairs
890
return ((getattr(athing.__get__(self), "_dbus_name",
1303
return ((getattr(athing.__get__(self), "_dbus_name", name),
892
1304
athing.__get__(self))
893
1305
for cls in self.__class__.__mro__
894
1306
for name, athing in
895
inspect.getmembers(cls,
896
self._is_dbus_thing(thing)))
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1313
def Introspect(self, object_path, connection):
1314
"""Overloading of standard D-Bus method.
1316
Inserts annotation tags on methods and signals.
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1321
document = xml.dom.minidom.parseString(xmlstring)
1323
for if_tag in document.getElementsByTagName("interface"):
1324
# Add annotation tags
1325
for typ in ("method", "signal"):
1326
for tag in if_tag.getElementsByTagName(typ):
1328
for name, prop in (self.
1329
_get_all_dbus_things(typ)):
1330
if (name == tag.getAttribute("name")
1331
and prop._dbus_interface
1332
== if_tag.getAttribute("name")):
1333
annots.update(getattr(
1334
prop, "_dbus_annotations", {}))
1335
for name, value in annots.items():
1336
ann_tag = document.createElement(
1338
ann_tag.setAttribute("name", name)
1339
ann_tag.setAttribute("value", value)
1340
tag.appendChild(ann_tag)
1341
# Add interface annotation tags
1342
for annotation, value in dict(
1343
itertools.chain.from_iterable(
1344
annotations().items()
1345
for name, annotations
1346
in self._get_all_dbus_things("interface")
1347
if name == if_tag.getAttribute("name")
1349
ann_tag = document.createElement("annotation")
1350
ann_tag.setAttribute("name", annotation)
1351
ann_tag.setAttribute("value", value)
1352
if_tag.appendChild(ann_tag)
1353
# Fix argument name for the Introspect method itself
1354
if (if_tag.getAttribute("name")
1355
== dbus.INTROSPECTABLE_IFACE):
1356
for cn in if_tag.getElementsByTagName("method"):
1357
if cn.getAttribute("name") == "Introspect":
1358
for arg in cn.getElementsByTagName("arg"):
1359
if (arg.getAttribute("direction")
1361
arg.setAttribute("name",
1363
xmlstring = document.toxml("utf-8")
1365
except (AttributeError, xml.dom.DOMException,
1366
xml.parsers.expat.ExpatError) as error:
1367
logger.error("Failed to override Introspection method",
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1373
"""A D-Bus object with properties.
1375
Classes inheriting from this can use the dbus_service_property
1376
decorator to expose methods as D-Bus properties. It exposes the
1377
standard Get(), Set(), and GetAll() methods on the D-Bus.
898
1380
def _get_dbus_property(self, interface_name, property_name):
899
1381
"""Returns a bound method if one exists which is a D-Bus
900
1382
property with the specified name and interface.
902
for cls in self.__class__.__mro__:
903
for name, value in (inspect.getmembers
905
self._is_dbus_thing("property"))):
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
906
1387
if (value._dbus_name == property_name
907
1388
and value._dbus_interface == interface_name):
908
1389
return value.__get__(self)
910
1391
# No such property
911
raise DBusPropertyNotFound(self.dbus_object_path + ":"
912
+ interface_name + "."
915
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1393
self.dbus_object_path, interface_name, property_name))
1396
def _get_all_interface_names(cls):
1397
"""Get a sequence of all interfaces supported by an object"""
1398
return (name for name in set(getattr(getattr(x, attr),
1399
"_dbus_interface", None)
1400
for x in (inspect.getmro(cls))
1402
if name is not None)
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
916
1406
out_signature="v")
917
1407
def Get(self, interface_name, property_name):
918
1408
"""Standard D-Bus property Get() method, see D-Bus standard.
1050
1536
return xmlstring
1540
dbus.OBJECT_MANAGER_IFACE
1541
except AttributeError:
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1546
"""A D-Bus object with an ObjectManager.
1548
Classes inheriting from this exposes the standard
1549
GetManagedObjects call and the InterfacesAdded and
1550
InterfacesRemoved signals on the standard
1551
"org.freedesktop.DBus.ObjectManager" interface.
1553
Note: No signals are sent automatically; they must be sent
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1557
out_signature="a{oa{sa{sv}}}")
1558
def GetManagedObjects(self):
1559
"""This function must be overridden"""
1560
raise NotImplementedError()
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1563
signature="oa{sa{sv}}")
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1568
def InterfacesRemoved(self, object_path, interfaces):
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1575
def Introspect(self, object_path, connection):
1576
"""Overloading of standard D-Bus method.
1578
Override return argument name of GetManagedObjects to be
1579
"objpath_interfaces_and_properties"
1581
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1585
document = xml.dom.minidom.parseString(xmlstring)
1587
for if_tag in document.getElementsByTagName("interface"):
1588
# Fix argument name for the GetManagedObjects method
1589
if (if_tag.getAttribute("name")
1590
== dbus.OBJECT_MANAGER_IFACE):
1591
for cn in if_tag.getElementsByTagName("method"):
1592
if (cn.getAttribute("name")
1593
== "GetManagedObjects"):
1594
for arg in cn.getElementsByTagName("arg"):
1595
if (arg.getAttribute("direction")
1599
"objpath_interfaces"
1601
xmlstring = document.toxml("utf-8")
1603
except (AttributeError, xml.dom.DOMException,
1604
xml.parsers.expat.ExpatError) as error:
1605
logger.error("Failed to override Introspection method",
1053
1610
def datetime_to_dbus(dt, variant_level=0):
1054
1611
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1056
return dbus.String("", variant_level = variant_level)
1057
return dbus.String(dt.isoformat(),
1058
variant_level=variant_level)
1613
return dbus.String("", variant_level=variant_level)
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1061
1617
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1410
1978
server to mandos-client
1414
1982
# Rejected - signal
1415
1983
@dbus.service.signal(_interface, signature="s")
1416
1984
def Rejected(self, reason):
1420
1988
# NeedApproval - signal
1421
1989
@dbus.service.signal(_interface, signature="tb")
1422
1990
def NeedApproval(self, timeout, default):
1424
1992
return self.need_approval()
1428
1996
# Approve - method
1429
1997
@dbus.service.method(_interface, in_signature="b")
1430
1998
def Approve(self, value):
1431
1999
self.approve(value)
1433
2001
# CheckedOK - method
1434
2002
@dbus.service.method(_interface)
1435
2003
def CheckedOK(self):
1436
2004
self.checked_ok()
1438
2006
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1439
2008
@dbus.service.method(_interface)
1440
2009
def Enable(self):
1444
2013
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1445
2015
@dbus.service.method(_interface)
1446
2016
def StartChecker(self):
1448
2018
self.start_checker()
1450
2020
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1451
2022
@dbus.service.method(_interface)
1452
2023
def Disable(self):
1456
2027
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1457
2029
@dbus.service.method(_interface)
1458
2030
def StopChecker(self):
1459
2031
self.stop_checker()
1463
2035
# ApprovalPending - property
1464
2036
@dbus_service_property(_interface, signature="b", access="read")
1465
2037
def ApprovalPending_dbus_property(self):
1466
2038
return dbus.Boolean(bool(self.approvals_pending))
1468
2040
# ApprovedByDefault - property
1469
@dbus_service_property(_interface, signature="b",
2041
@dbus_service_property(_interface,
1470
2043
access="readwrite")
1471
2044
def ApprovedByDefault_dbus_property(self, value=None):
1472
2045
if value is None: # get
1473
2046
return dbus.Boolean(self.approved_by_default)
1474
2047
self.approved_by_default = bool(value)
1476
2049
# ApprovalDelay - property
1477
@dbus_service_property(_interface, signature="t",
2050
@dbus_service_property(_interface,
1478
2052
access="readwrite")
1479
2053
def ApprovalDelay_dbus_property(self, value=None):
1480
2054
if value is None: # get
1481
return dbus.UInt64(self.approval_delay_milliseconds())
2055
return dbus.UInt64(self.approval_delay.total_seconds()
1482
2057
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1484
2059
# ApprovalDuration - property
1485
@dbus_service_property(_interface, signature="t",
2060
@dbus_service_property(_interface,
1486
2062
access="readwrite")
1487
2063
def ApprovalDuration_dbus_property(self, value=None):
1488
2064
if value is None: # get
1489
return dbus.UInt64(timedelta_to_milliseconds(
1490
self.approval_duration))
2065
return dbus.UInt64(self.approval_duration.total_seconds()
1491
2067
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1493
2069
# Name - property
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1494
2072
@dbus_service_property(_interface, signature="s", access="read")
1495
2073
def Name_dbus_property(self):
1496
2074
return dbus.String(self.name)
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
1498
2083
# Fingerprint - property
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1499
2086
@dbus_service_property(_interface, signature="s", access="read")
1500
2087
def Fingerprint_dbus_property(self):
1501
2088
return dbus.String(self.fingerprint)
1503
2090
# Host - property
1504
@dbus_service_property(_interface, signature="s",
2091
@dbus_service_property(_interface,
1505
2093
access="readwrite")
1506
2094
def Host_dbus_property(self, value=None):
1507
2095
if value is None: # get
1508
2096
return dbus.String(self.host)
1509
self.host = unicode(value)
2097
self.host = str(value)
1511
2099
# Created - property
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1512
2102
@dbus_service_property(_interface, signature="s", access="read")
1513
2103
def Created_dbus_property(self):
1514
2104
return datetime_to_dbus(self.created)
1516
2106
# LastEnabled - property
1517
2107
@dbus_service_property(_interface, signature="s", access="read")
1518
2108
def LastEnabled_dbus_property(self):
1519
2109
return datetime_to_dbus(self.last_enabled)
1521
2111
# Enabled - property
1522
@dbus_service_property(_interface, signature="b",
2112
@dbus_service_property(_interface,
1523
2114
access="readwrite")
1524
2115
def Enabled_dbus_property(self, value=None):
1525
2116
if value is None: # get
1573
2165
if (getattr(self, "disable_initiator_tag", None)
1576
gobject.source_remove(self.disable_initiator_tag)
1577
self.disable_initiator_tag = (
1578
gobject.timeout_add(
1579
timedelta_to_milliseconds(self.expires - now),
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2170
int((self.expires - now).total_seconds() * 1000),
1582
2173
# ExtendedTimeout - property
1583
@dbus_service_property(_interface, signature="t",
2174
@dbus_service_property(_interface,
1584
2176
access="readwrite")
1585
2177
def ExtendedTimeout_dbus_property(self, value=None):
1586
2178
if value is None: # get
1587
return dbus.UInt64(self.extended_timeout_milliseconds())
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
1588
2181
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1590
2183
# Interval - property
1591
@dbus_service_property(_interface, signature="t",
2184
@dbus_service_property(_interface,
1592
2186
access="readwrite")
1593
2187
def Interval_dbus_property(self, value=None):
1594
2188
if value is None: # get
1595
return dbus.UInt64(self.interval_milliseconds())
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1596
2190
self.interval = datetime.timedelta(0, 0, 0, value)
1597
2191
if getattr(self, "checker_initiator_tag", None) is None:
1599
2193
if self.enabled:
1600
2194
# Reschedule checker run
1601
gobject.source_remove(self.checker_initiator_tag)
1602
self.checker_initiator_tag = (gobject.timeout_add
1603
(value, self.start_checker))
1604
self.start_checker() # Start one now, too
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2197
value, self.start_checker)
2198
self.start_checker() # Start one now, too
1606
2200
# Checker - property
1607
@dbus_service_property(_interface, signature="s",
2201
@dbus_service_property(_interface,
1608
2203
access="readwrite")
1609
2204
def Checker_dbus_property(self, value=None):
1610
2205
if value is None: # get
1611
2206
return dbus.String(self.checker_command)
1612
self.checker_command = unicode(value)
2207
self.checker_command = str(value)
1614
2209
# CheckerRunning - property
1615
@dbus_service_property(_interface, signature="b",
2210
@dbus_service_property(_interface,
1616
2212
access="readwrite")
1617
2213
def CheckerRunning_dbus_property(self, value=None):
1618
2214
if value is None: # get
1791
2398
delay -= time2 - time
1794
while sent_size < len(client.secret):
1796
sent = session.send(client.secret[sent_size:])
1797
except gnutls.errors.GNUTLSError as error:
1798
logger.warning("gnutls send failed",
1801
logger.debug("Sent: %d, remaining: %d",
1802
sent, len(client.secret)
1803
- (sent_size + sent))
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
1806
2407
logger.info("Sending secret to %s", client.name)
1807
2408
# bump the timeout using extended_timeout
1808
2409
client.bump_timeout(client.extended_timeout)
1809
2410
if self.server.use_dbus:
1810
2411
# Emit D-Bus signal
1811
2412
client.GotSecret()
1814
2415
if approval_required:
1815
2416
client.approvals_pending -= 1
1818
except gnutls.errors.GNUTLSError as error:
2419
except gnutls.Error as error:
1819
2420
logger.warning("GnuTLS bye failed",
1820
2421
exc_info=error)
1823
2424
def peer_certificate(session):
1824
"Return the peer's OpenPGP certificate as a bytestring"
1825
# If not an OpenPGP certificate...
1826
if (gnutls.library.functions
1827
.gnutls_certificate_type_get(session._c_object)
1828
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1829
# ...do the normal thing
1830
return session.peer_certificate
2425
"Return the peer's certificate as a bytestring"
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2439
# ...return invalid data
1831
2441
list_size = ctypes.c_uint(1)
1832
cert_list = (gnutls.library.functions
1833
.gnutls_certificate_get_peers
2442
cert_list = (gnutls.certificate_get_peers
1834
2443
(session._c_object, ctypes.byref(list_size)))
1835
2444
if not bool(cert_list) and list_size.value != 0:
1836
raise gnutls.errors.GNUTLSError("error getting peer"
2445
raise gnutls.Error("error getting peer certificate")
1838
2446
if list_size.value == 0:
1840
2448
cert = cert_list[0]
1841
2449
return ctypes.string_at(cert.data, cert.size)
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
1844
2486
def fingerprint(openpgp):
1845
2487
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1846
2488
# New GnuTLS "datum" with the OpenPGP public key
1847
datum = (gnutls.library.types
1848
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1851
ctypes.c_uint(len(openpgp))))
2489
datum = gnutls.datum_t(
2490
ctypes.cast(ctypes.c_char_p(openpgp),
2491
ctypes.POINTER(ctypes.c_ubyte)),
2492
ctypes.c_uint(len(openpgp)))
1852
2493
# New empty GnuTLS certificate
1853
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1854
(gnutls.library.functions
1855
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1856
2496
# Import the OpenPGP public key into the certificate
1857
(gnutls.library.functions
1858
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1859
gnutls.library.constants
1860
.GNUTLS_OPENPGP_FMT_RAW))
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1861
2499
# Verify the self signature in the key
1862
2500
crtverify = ctypes.c_uint()
1863
(gnutls.library.functions
1864
.gnutls_openpgp_crt_verify_self(crt, 0,
1865
ctypes.byref(crtverify)))
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1866
2503
if crtverify.value != 0:
1867
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1868
raise (gnutls.errors.CertificateSecurityError
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
1870
2507
# New buffer for the fingerprint
1871
2508
buf = ctypes.create_string_buffer(20)
1872
2509
buf_len = ctypes.c_size_t()
1873
2510
# Get the fingerprint from the certificate into the buffer
1874
(gnutls.library.functions
1875
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1876
ctypes.byref(buf_len)))
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1877
2513
# Deinit the certificate
1878
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2514
gnutls.openpgp_crt_deinit(crt)
1879
2515
# Convert the buffer to a Python bytestring
1880
2516
fpr = ctypes.string_at(buf, buf_len.value)
1881
2517
# Convert the bytestring to hexadecimal notation
1964
2606
# socket_wrapper(), if socketfd was set.
1965
2607
socketserver.TCPServer.__init__(self, server_address,
1966
2608
RequestHandlerClass)
1968
2610
def server_bind(self):
1969
2611
"""This overrides the normal server_bind() function
1970
2612
to bind to an interface if one was specified, and also NOT to
1971
2613
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
1972
2615
if self.interface is not None:
1973
2616
if SO_BINDTODEVICE is None:
1974
logger.error("SO_BINDTODEVICE does not exist;"
1975
" cannot bind to interface %s",
1979
self.socket.setsockopt(socket.SOL_SOCKET,
1981
str(self.interface + '\0'))
1982
except socket.error as error:
1983
if error.errno == errno.EPERM:
1984
logger.error("No permission to bind to"
1985
" interface %s", self.interface)
1986
elif error.errno == errno.ENOPROTOOPT:
1987
logger.error("SO_BINDTODEVICE not available;"
1988
" cannot bind to interface %s",
1990
elif error.errno == errno.ENODEV:
1991
logger.error("Interface %s does not exist,"
1992
" cannot bind", self.interface)
2617
# Fall back to a hard-coded value which seems to be
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
1995
2638
# Only bind(2) the socket if we really need to.
1996
2639
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
1997
2642
if not self.server_address[0]:
1998
2643
if self.address_family == socket.AF_INET6:
1999
any_address = "::" # in6addr_any
2644
any_address = "::" # in6addr_any
2001
any_address = "0.0.0.0" # INADDR_ANY
2646
any_address = "0.0.0.0" # INADDR_ANY
2002
2647
self.server_address = (any_address,
2003
2648
self.server_address[1])
2004
2649
elif not self.server_address[1]:
2005
self.server_address = (self.server_address[0],
2650
self.server_address = (self.server_address[0], 0)
2007
2651
# if self.interface:
2008
2652
# self.server_address = (self.server_address[0],
2034
2683
self.gnutls_priority = gnutls_priority
2035
2684
IPv6_TCPServer.__init__(self, server_address,
2036
2685
RequestHandlerClass,
2037
interface = interface,
2038
use_ipv6 = use_ipv6,
2039
socketfd = socketfd)
2686
interface=interface,
2040
2690
def server_activate(self):
2041
2691
if self.enabled:
2042
2692
return socketserver.TCPServer.server_activate(self)
2044
2694
def enable(self):
2045
2695
self.enabled = True
2047
2697
def add_pipe(self, parent_pipe, proc):
2048
2698
# Call "handle_ipc" for both data and EOF events
2049
gobject.io_add_watch(parent_pipe.fileno(),
2050
gobject.IO_IN | gobject.IO_HUP,
2051
functools.partial(self.handle_ipc,
2056
def handle_ipc(self, source, condition, parent_pipe=None,
2057
proc = None, client_object=None):
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2702
functools.partial(self.handle_ipc,
2703
parent_pipe=parent_pipe,
2706
def handle_ipc(self, source, condition,
2709
client_object=None):
2058
2710
# error, or the other end of multiprocessing.Pipe has closed
2059
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2060
2712
# Wait for other process to exit
2064
2716
# Read a request from the child
2065
2717
request = parent_pipe.recv()
2066
2718
command = request[0]
2068
2720
if command == 'init':
2070
address = request[2]
2072
for c in self.clients.itervalues():
2073
if c.fingerprint == fpr:
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2728
if key_id and c.key_id == key_id:
2731
if fpr and c.fingerprint == fpr:
2077
logger.info("Client not found for fingerprint: %s, ad"
2078
"dress: %s", fpr, address)
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
2079
2737
if self.use_dbus:
2080
2738
# Emit D-Bus signal
2081
mandos_dbus_service.ClientNotFound(fpr,
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
2083
2741
parent_pipe.send(False)
2086
gobject.io_add_watch(parent_pipe.fileno(),
2087
gobject.IO_IN | gobject.IO_HUP,
2088
functools.partial(self.handle_ipc,
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2747
functools.partial(self.handle_ipc,
2748
parent_pipe=parent_pipe,
2750
client_object=client))
2094
2751
parent_pipe.send(True)
2095
2752
# remove the old hook in favor of the new above hook on
2099
2756
funcname = request[1]
2100
2757
args = request[2]
2101
2758
kwargs = request[3]
2103
2760
parent_pipe.send(('data', getattr(client_object,
2104
2761
funcname)(*args,
2107
2764
if command == 'getattr':
2108
2765
attrname = request[1]
2109
if callable(client_object.__getattribute__(attrname)):
2110
parent_pipe.send(('function',))
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
2112
parent_pipe.send(('data', client_object
2113
.__getattribute__(attrname)))
2771
'data', client_object.__getattribute__(attrname)))
2115
2773
if command == 'setattr':
2116
2774
attrname = request[1]
2117
2775
value = request[2]
2118
2776
setattr(client_object, attrname, value)
2123
2781
def rfc3339_duration_to_delta(duration):
2124
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2126
>>> rfc3339_duration_to_delta("P7D")
2127
datetime.timedelta(7)
2128
>>> rfc3339_duration_to_delta("PT60S")
2129
datetime.timedelta(0, 60)
2130
>>> rfc3339_duration_to_delta("PT60M")
2131
datetime.timedelta(0, 3600)
2132
>>> rfc3339_duration_to_delta("PT24H")
2133
datetime.timedelta(1)
2134
>>> rfc3339_duration_to_delta("P1W")
2135
datetime.timedelta(7)
2136
>>> rfc3339_duration_to_delta("PT5M30S")
2137
datetime.timedelta(0, 330)
2138
>>> rfc3339_duration_to_delta("P1DT3M20S")
2139
datetime.timedelta(1, 200)
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2142
2800
# Parsing an RFC 3339 duration with regular expressions is not
2143
2801
# possible - there would have to be multiple places for the same
2144
2802
# values, like seconds. The current code, while more esoteric, is
2145
2803
# cleaner without depending on a parsing library. If Python had a
2146
2804
# built-in library for parsing we would use it, but we'd like to
2147
2805
# avoid excessive use of external libraries.
2149
2807
# New type for defining tokens, syntax, and semantics all-in-one
2150
Token = collections.namedtuple("Token",
2151
("regexp", # To match token; if
2152
# "value" is not None,
2153
# must have a "group"
2155
"value", # datetime.timedelta or
2157
"followers")) # Tokens valid after
2808
Token = collections.namedtuple("Token", (
2809
"regexp", # To match token; if "value" is not None, must have
2810
# a "group" containing digits
2811
"value", # datetime.timedelta or None
2812
"followers")) # Tokens valid after this token
2159
2813
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2160
2814
# the "duration" ABNF definition in RFC 3339, Appendix A.
2161
2815
token_end = Token(re.compile(r"$"), None, frozenset())
2162
2816
token_second = Token(re.compile(r"(\d+)S"),
2163
2817
datetime.timedelta(seconds=1),
2164
frozenset((token_end,)))
2818
frozenset((token_end, )))
2165
2819
token_minute = Token(re.compile(r"(\d+)M"),
2166
2820
datetime.timedelta(minutes=1),
2167
2821
frozenset((token_second, token_end)))
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2483
3155
except OSError as error:
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
2484
3158
if error.errno != errno.EPERM:
2488
3162
# Enable all possible GnuTLS debugging
2490
3164
# "Use a log level over 10 to enable all debugging options."
2491
3165
# - GnuTLS manual
2492
gnutls.library.functions.gnutls_global_set_log_level(11)
2494
@gnutls.library.types.gnutls_log_func
3166
gnutls.global_set_log_level(11)
2495
3169
def debug_gnutls(level, string):
2496
3170
logger.debug("GnuTLS: %s", string[:-1])
2498
(gnutls.library.functions
2499
.gnutls_global_set_log_function(debug_gnutls))
3172
gnutls.global_set_log_function(debug_gnutls)
2501
3174
# Redirect stdin so all checkers get /dev/null
2502
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2503
3176
os.dup2(null, sys.stdin.fileno())
2507
3180
# Need to fork before connecting to D-Bus
2508
3181
if not foreground:
2509
3182
# Close all input and output, do double fork, etc.
2512
# multiprocessing will use threads, so before we use gobject we
2513
# need to inform gobject that threads will be used.
2514
gobject.threads_init()
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
2516
3190
global main_loop
2517
3191
# From the Avahi example code
2518
3192
DBusGMainLoop(set_as_default=True)
2519
main_loop = gobject.MainLoop()
3193
main_loop = GLib.MainLoop()
2520
3194
bus = dbus.SystemBus()
2521
3195
# End of Avahi example code
2524
3198
bus_name = dbus.service.BusName("se.recompile.Mandos",
2525
bus, do_not_queue=True)
2526
old_bus_name = (dbus.service.BusName
2527
("se.bsnet.fukt.Mandos", bus,
2529
except dbus.exceptions.NameExistsException as e:
3201
old_bus_name = dbus.service.BusName(
3202
"se.bsnet.fukt.Mandos", bus,
3204
except dbus.exceptions.DBusException as e:
2530
3205
logger.error("Disabling D-Bus:", exc_info=e)
2531
3206
use_dbus = False
2532
3207
server_settings["use_dbus"] = False
2533
3208
tcp_server.use_dbus = False
2534
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2535
service = AvahiServiceToSyslog(name =
2536
server_settings["servicename"],
2537
servicetype = "_mandos._tcp",
2538
protocol = protocol, bus = bus)
2539
if server_settings["interface"]:
2540
service.interface = (if_nametoindex
2541
(str(server_settings["interface"])))
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3211
service = AvahiServiceToSyslog(
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3216
if server_settings["interface"]:
3217
service.interface = if_nametoindex(
3218
server_settings["interface"].encode("utf-8"))
2543
3220
global multiprocessing_manager
2544
3221
multiprocessing_manager = multiprocessing.Manager()
2546
3223
client_class = Client
2548
client_class = functools.partial(ClientDBus, bus = bus)
3225
client_class = functools.partial(ClientDBus, bus=bus)
2550
3227
client_settings = Client.config_parser(client_config)
2551
3228
old_client_settings = {}
2552
3229
clients_data = {}
2554
3231
# This is used to redirect stdout and stderr for checker processes
2556
wnull = open(os.devnull, "w") # A writable /dev/null
3233
wnull = open(os.devnull, "w") # A writable /dev/null
2557
3234
# Only used if server is running in foreground but not in debug
2559
3236
if debug or not foreground:
2562
3239
# Get client data and settings from last running state.
2563
3240
if server_settings["restore"]:
2565
3242
with open(stored_state_path, "rb") as stored_state:
2566
clients_data, old_client_settings = (pickle.load
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3262
clients_data[key].items()}
3263
clients_data[key] = value
3265
value["client_structure"] = [
3267
if isinstance(s, bytes)
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
2568
3293
os.remove(stored_state_path)
2569
3294
except IOError as e:
2570
3295
if e.errno == errno.ENOENT:
2571
logger.warning("Could not load persistent state: {0}"
2572
.format(os.strerror(e.errno)))
3296
logger.warning("Could not load persistent state:"
3297
" {}".format(os.strerror(e.errno)))
2574
3299
logger.critical("Could not load persistent state:",
2577
3302
except EOFError as e:
2578
3303
logger.warning("Could not load persistent state: "
2579
"EOFError:", exc_info=e)
2581
3307
with PGPEngine() as pgp:
2582
for client_name, client in clients_data.iteritems():
3308
for client_name, client in clients_data.items():
2583
3309
# Skip removed clients
2584
3310
if client_name not in client_settings:
2587
3313
# Decide which value to use after restoring saved state.
2588
3314
# We have three different values: Old config file,
2589
3315
# new config file, and saved state.
2647
3373
for client_name in (set(client_settings)
2648
3374
- set(old_client_settings)):
2649
3375
clients_data[client_name] = client_settings[client_name]
2651
3377
# Create all client objects
2652
for client_name, client in clients_data.iteritems():
3378
for client_name, client in clients_data.items():
2653
3379
tcp_server.clients[client_name] = client_class(
2654
name = client_name, settings = client,
2655
server_settings = server_settings)
3382
server_settings=server_settings)
2657
3384
if not tcp_server.clients:
2658
3385
logger.warning("No clients defined")
2660
3387
if not foreground:
2661
3388
if pidfile is not None:
2665
pidfile.write(str(pid) + "\n".encode("utf-8"))
3392
print(pid, file=pidfile)
2666
3393
except IOError:
2667
3394
logger.error("Could not write to file %r with PID %d",
2668
3395
pidfilename, pid)
2670
3397
del pidfilename
2672
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2673
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
2676
@alternate_dbus_interfaces({"se.recompile.Mandos":
2677
"se.bsnet.fukt.Mandos"})
2678
class MandosDBusService(DBusObjectWithProperties):
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2679
3408
"""A D-Bus proxy object"""
2680
3410
def __init__(self):
2681
3411
dbus.service.Object.__init__(self, bus, "/")
2682
3413
_interface = "se.recompile.Mandos"
2684
@dbus_interface_annotations(_interface)
2686
return { "org.freedesktop.DBus.Property"
2687
".EmitsChangedSignal":
2690
3415
@dbus.service.signal(_interface, signature="o")
2691
3416
def ClientAdded(self, objpath):
2695
3420
@dbus.service.signal(_interface, signature="ss")
2696
def ClientNotFound(self, fingerprint, address):
3421
def ClientNotFound(self, key_id, address):
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2700
3427
@dbus.service.signal(_interface, signature="os")
2701
3428
def ClientRemoved(self, objpath, name):
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2705
3434
@dbus.service.method(_interface, out_signature="ao")
2706
3435
def GetAllClients(self):
2708
return dbus.Array(c.dbus_object_path
2710
tcp_server.clients.itervalues())
3437
return dbus.Array(c.dbus_object_path for c in
3438
tcp_server.clients.values())
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2712
3442
@dbus.service.method(_interface,
2713
3443
out_signature="a{oa{sv}}")
2714
3444
def GetAllClientsWithProperties(self):
2716
3446
return dbus.Dictionary(
2717
((c.dbus_object_path, c.GetAll(""))
2718
for c in tcp_server.clients.itervalues()),
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2719
3450
signature="oa{sv}")
2721
3452
@dbus.service.method(_interface, in_signature="o")
2722
3453
def RemoveClient(self, object_path):
2724
for c in tcp_server.clients.itervalues():
3455
for c in tcp_server.clients.values():
2725
3456
if c.dbus_object_path == object_path:
2726
3457
del tcp_server.clients[c.name]
2727
3458
c.remove_from_connection()
2728
# Don't signal anything except ClientRemoved
3459
# Don't signal the disabling
2729
3460
c.disable(quiet=True)
2731
self.ClientRemoved(object_path, c.name)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2733
3464
raise KeyError(object_path)
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3469
out_signature="a{oa{sa{sv}}}")
3470
def GetManagedObjects(self):
3472
return dbus.Dictionary(
3473
{client.dbus_object_path:
3475
{interface: client.GetAll(interface)
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3480
def client_added_signal(self, client):
3481
"""Send the new standard signal and the old signal"""
3483
# New standard signal
3484
self.InterfacesAdded(
3485
client.dbus_object_path,
3487
{interface: client.GetAll(interface)
3489
client._get_all_interface_names()}))
3491
self.ClientAdded(client.dbus_object_path)
3493
def client_removed_signal(self, client):
3494
"""Send the new standard signal and the old signal"""
3496
# New standard signal
3497
self.InterfacesRemoved(
3498
client.dbus_object_path,
3499
client._get_all_interface_names())
3501
self.ClientRemoved(client.dbus_object_path,
2737
3504
mandos_dbus_service = MandosDBusService()
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
2740
3512
"Cleanup function; run on exit"
2743
multiprocessing.active_children()
3516
mp.active_children()
2745
3518
if not (tcp_server.clients or client_settings):
2748
3521
# Store client before exiting. Secrets are encrypted with key
2749
3522
# based on what config file has. If config file is
2750
3523
# removed/edited, old secret will thus be unrecovable.
2752
3525
with PGPEngine() as pgp:
2753
for client in tcp_server.clients.itervalues():
3526
for client in tcp_server.clients.values():
2754
3527
key = client_settings[client.name]["secret"]
2755
3528
client.encrypted_secret = pgp.encrypt(client.secret,
2757
3530
client_dict = {}
2759
3532
# A list of attributes that can not be pickled
2761
exclude = set(("bus", "changedstate", "secret",
2762
"checker", "server_settings"))
2763
for name, typ in (inspect.getmembers
2764
(dbus.service.Object)):
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3536
for name, typ in inspect.getmembers(dbus.service
2765
3538
exclude.add(name)
2767
3540
client_dict["encrypted_secret"] = (client
2768
3541
.encrypted_secret)
2769
3542
for attr in client.client_structure:
2770
3543
if attr not in exclude:
2771
3544
client_dict[attr] = getattr(client, attr)
2773
3546
clients[client.name] = client_dict
2774
3547
del client_settings[client.name]["secret"]
2777
with (tempfile.NamedTemporaryFile
2778
(mode='wb', suffix=".pickle", prefix='clients-',
2779
dir=os.path.dirname(stored_state_path),
2780
delete=False)) as stored_state:
2781
pickle.dump((clients, client_settings), stored_state)
2782
tempname=stored_state.name
3550
with tempfile.NamedTemporaryFile(
3554
dir=os.path.dirname(stored_state_path),
3555
delete=False) as stored_state:
3556
pickle.dump((clients, client_settings), stored_state,
3558
tempname = stored_state.name
2783
3559
os.rename(tempname, stored_state_path)
2784
3560
except (IOError, OSError) as e: